﻿    <p>
      A transport element is a generalization of all transport related objects that move
      people, animals or goods within a building or building
      complex. The <em>IfcTransportElement</em> defines the
      occurrence of a transport element, that (if given), is
      expressed by the <em>IfcTransportElementType</em>.
    </p>
    <blockquote class="example">
      EXAMPLE&nbsp; Transportation elements include elevator
      (lift), escalator, moving walkway, etc.
    </blockquote>
    <blockquote class="note">
      NOTE&nbsp; More detailed equipment that may be a part of a
      transportation device, like a lifting hook, is defined as
      <em>IfcDiscreteAccessory</em>. It maybe included as a part of
      the <em>IfcTransportElement</em> by virtue of the objectified
      relationship <em>IfcRelAggregates</em>.
    </blockquote>
    <p>
      Depending on local classification systems transport elements
      and transportation systems in buildings are either considered
      as part of a building system, or as part of a building
      service system. Within IFC they are considered as part of a
      building system and may have to be mapped appropriately.
    </p>
    <blockquote class="history">
      HISTORY&nbsp; New entity in IFC2x.
    </blockquote>
    <blockquote class="change-ifc2x">
      IFC2x CHANGE&nbsp; The attribute
      <em>PredefinedType</em> (previously OperationType) is made
      optional.
    </blockquote>
    <blockquote class="change-ifc2x4">
      IFC4 CHANGE&nbsp; The last attributes CapacityByWeight and
      CapacityByNumber are removed, use Pset_TransportElementCommon
      instead.
    </blockquote>